Question about Panasonic DMR-EH55 DVD Recorder/HDD Recorder

3 Answers

Hard drive out, can't start up with new one

The used unit came with a mechanically defective hard drive. I put a new one in, but no item about reformatting appaeared on the screen. After a "please wait"The DVD tray slides out and says HD DERR on the screen. Is there something I can download to make this work again?
It showed this with the defective drive, which was clicking and grinding, this one powers up and spins OK.

When the unit is shut off, the clock shows but any button I activate goes back to the DVD try sliding in and out.
I can't even reformat the hard drive, which I know would be the first step.

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  • jonfile Aug 29, 2008

    It worked! I got a 300mb hard drive (bigger than the original) and it formatted perfectly and now I have 90 hrs at SP.

  • daveydamit Sep 02, 2008

    I installed a 500GB hard drive and put the firmware on it. Still only got the 92 hours at SP. Must be a built-in limit to 200GB, so will have to investigate more to see if there is a way to increase capacity.

  • jonfile Sep 02, 2008

    I also found out that you need a Windows or Linux machine to extract the firmware file and burn the CD. At least when I unstuffed it on a Mac, I could not find a ISO file, but I have a Windows machine as well and it worked there.

    Interesting about the 92 hour limit, same as I got with 300gig hard drive, which was the smallest I could buy new.


  • howgipps1 May 03, 2009

    I want to rescue all the important video recordings on the HDD of my EH-55...I took out the HDD and put it in a case and connected it via USB to my WinPC, but it couldn't even see the drive, let alone the files on it.

    So, what file format does the EH-55 use, and how is the drive formatted?

    NTFS,FAT, Unix, Mac???

    How do I rescue my recordings onto my computer other than a conversion to analogue and onto DVD, which is a lousy solution.??

    Please help.



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I know this is an old post but I wanted to share my success with others. I have been successful in changing the hard drive in my Panasonic DMR-EH55. It was very easy once I had the firmware disc which I downloaded from Panasonic's website yesterday. Had been looking for months for a way to do it and finally it came through. The firmware disc image is just over 7MB and the file is named - I downloaded it from panasonic's website at

I hope this helps out as it did for me.

Posted on Aug 29, 2008

  • daveydamit Sep 02, 2008

    Answer for Guest - to create the firmware disc - unzip the file you download. In the collection of files you have unzipped you will see that one of them is an ISO file called EH55P_UP317.iso You would use Nero to burn this image file to a CD-R.


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EH55P_UP317.iso - with this file you can also burn back to CD using IMGBURN - it's free. It will be bootable.

Posted on Dec 04, 2008


The firmware how to copy on cd?the zip as data with nero?

Posted on Aug 30, 2008

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